87 Octane in a SS

[ChocoTaco369]

Originally Posted by Obzen

Teh interwebs is no place for punctuation

Ain't nobody got time fo' that.

[Squillo]

[ZED SLED]

Originally Posted by ChocoTaco369

There is this new grammatical invention called a "period." You should use them. My eyes.

+1
Remember, Always use proper spelling, punctuation, and grammar.
It could mean the difference between helping your
uncle, Jack, off a horse...or helping your uncle jack off a horse.

[Lumix]

Originally Posted by mclark10

+1
Remember, Always use proper spelling, punctuation, and grammar.
It could mean the difference between helping your
uncle, Jack, off a horse...or helping your uncle jack off a horse.

...

[Manbearpig]

Originally Posted by the barber

Have you ever let some one borrow your car

No.

[the barber]

Originally Posted by Manbearpig

No.

To each their own.

[wayne watson]

Don't normally loan out 30,000 dollar cars

[Gillis]

Originally Posted by the barber

The point of the thread was to inform other people whom I let borrow my car to to make sure they know to pump 91

How many people do you let borrow your car that you need a sign?

[sstnt]

Hmmm...OP has an LS3 M6.....thought the fuse pull was only needed for the L99 A6? Or am I wrong on that?

[Chevy_cowboy]

Originally Posted by sstnt

Hmmm...OP has an LS3 M6.....thought the fuse pull was only needed for the L99 A6? Or am I wrong on that?

In the old threads I've read the consensus on LS3's seems to be somewhat undetermined but it doesn't hurt anything and doesn't cost anything, so why not.

Personally I did it on ours since we bought it used, did not notice any difference whatsoever... can't say if that means its always had premium, or if it means its not an issue on LS3's

[danvillekidd]

Originally Posted by sstnt

Hmmm...OP has an LS3 M6.....thought the fuse pull was only needed for the L99 A6? Or am I wrong on that?

Yes and no. The fuse pull came about when people figured out that the L99 cars were not going back to the high table after regular had been ran, and then premium put in. The TSB that I saw was for the L99 only. But, if a LS3 car had regular and then premium, it will take time for it to relearn. You can also do the fuse pull and have it go right back instead of waiting for it to relearn. The whole original fuse pull thread is an interesting (and long) read to see how this all came about.

Edit: here is one of the original documents from the fuse pull thread:

Originally Posted by NAZZ

#PIP4728: Higher Than Expected 0-60 MPH (97 KPH) Acceleration Time - (Nov 4, 2009)


Subject: Higher Than Expected 0-60 MPH (97 KPH) Acceleration Time


Models: 2010 Chevrolet Camaro

with V8 Active Fuel Management Engine (RPO L99)

and 6 Speed Automatic Transmission (RPO MYC)




--------------------------------------------------------------------------------

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:
Some customers may complain of higher than expected 0-60 MPH (97 KPH) acceleration times when hot ambient temperatures are present. In some cases, they may report 0-60 times around 7 seconds.

This may be the result of the vehicle being filled with regular grade unleaded gasoline at one time. If the vehicle has been filled with regular unleaded gasoline, the ECM may be compensating for the lower octane by retarding the ignition timing during certain driving conditions.

Recommendation/Instructions:
If SI diagnosis does not isolate the cause of this concern, perform the suggestions below if the customer wants the best performance from their Camaro:

In an area where it is legal to do so, take a snapshot of a 0-60 WOT acceleration event and compare the vehicle speed parameter to the snapshot timer to determine the 0-60 MPH time.
Determine what gasoline octane the customer has been filling the vehicle with.
• 2a. If they have never used anything but premium unleaded with a posted octane of 93 or higher, go to step 3.

• 2b. If they occasionally use regular or mid-grade gasoline, the gasoline must be removed from the tank and it must be refilled with premium fuel of 93 octane or greater. This can be done by advising the customer to switch to premium fuel of 93 octane or greater and returning after a few tanks of premium fuel have been consumed. Or, if immediate results are necessary, drain the fuel tank, refill it with premium fuel of 93 octane or greater, and drive the vehicle at least 15 miles to purge the old fuel out of the fuel rail and lines.

Reprogram the ECM with the latest TIS2Web calibrations to reset the ECM adapts. Normally this reset can also be accomplished by pulling the 2 main ECM fuses (F13R and F20U) shown in the ECM Power, Ground, MIL, and Serial Data Schematic (SI Document # 2209065).
In an area where it is legal to do so, take another snapshot of a 0-60 WOT acceleration event and compare it to the original snapshot to determine if the 0-60 MPH time has increased. If an increase is noted, advise the customer that they should only use premium unleaded gasoline with a posted octane rating of 93 or higher to continue getting the best performance from their Camaro. This is outlined on page 8-45 of the owner's manual. GM Connect Message G_0000037144 was also sent out on 9/2/2009 about filling stock units with premium gasoline.

[the barber]

Originally Posted by Gillis

How many people do you let borrow your car that you need a sign?

To answer question not a whole lot. Just a couple family members and a few trustworthy friends, that I trust and know how to treat other peoples things with respect. Its just a car it can be replaced if something happens to it, god forbid something does happen to my car its gonna be time to upgrade to a Zmonster

[PalmerGA]

Why don't you just ask him what gas he put in your car?

[rontammy0]

Originally Posted by DaveA

Admit it....who was coming in here to yell at OP after reading the topic?

Ok ok ..yes it's exactly what I was going to do